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1230 lines
56 KiB
1230 lines
56 KiB
// HTTPDProxyHandler.java
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// (C) 2004 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 2004 on http://yacy.net
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// Contributions:
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// [AS] Alexander Schier: Blacklist (404 response for AGIS hosts)
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// [TL] Timo Leise: url-wildcards for blacklists
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/*
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Class documentation:
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This class is a servlet to the httpd daemon. It is accessed each time
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an URL in a GET, HEAD or POST command contains the whole host information
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or a host is given in the header host field of an HTTP/1.0 / HTTP/1.1
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command.
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Transparency is maintained, whenever appropriate. We change header
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attributes if necessary for the indexing mechanism; i.e. we do not
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support gzip-ed encoding. We also do not support unrealistic
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'expires' values that would force a cache to be flushed immediately
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pragma non-cache attributes are supported
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*/
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package net.yacy.server.http;
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import java.io.BufferedReader;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.net.BindException;
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import java.net.ConnectException;
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import java.net.InetAddress;
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import java.net.MalformedURLException;
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import java.net.NoRouteToHostException;
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import java.net.SocketException;
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import java.net.SocketTimeoutException;
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import java.net.UnknownHostException;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.logging.FileHandler;
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import java.util.logging.Level;
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import java.util.logging.LogManager;
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import java.util.logging.Logger;
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import net.yacy.cora.document.id.DigestURL;
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import net.yacy.cora.protocol.ClientIdentification;
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import net.yacy.cora.protocol.Domains;
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import net.yacy.cora.protocol.HeaderFramework;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.protocol.ResponseHeader;
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import net.yacy.cora.protocol.http.HTTPClient;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.crawler.data.Cache;
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import net.yacy.crawler.retrieval.Request;
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import net.yacy.crawler.retrieval.Response;
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import net.yacy.document.TextParser;
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import net.yacy.document.parser.html.ContentTransformer;
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import net.yacy.document.parser.html.Transformer;
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import net.yacy.kelondro.io.ByteCountOutputStream;
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import net.yacy.kelondro.util.FileUtils;
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import net.yacy.peers.operation.yacyBuildProperties;
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import net.yacy.repository.Blacklist.BlacklistType;
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import net.yacy.search.Switchboard;
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import net.yacy.search.SwitchboardConstants;
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import net.yacy.server.serverObjects;
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public final class HTTPDProxyHandler {
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private static final String yacyProxyUserAgent = "yacyproxy (" + ClientIdentification.yacySystem +") http://yacy.net/bot.html";
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// static variables
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// can only be instantiated upon first instantiation of this class object
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private static Switchboard sb = null;
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private static final HashSet<String> yellowList;
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private static int timeout = 60000;
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private static Process redirectorProcess = null;
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private static boolean redirectorEnabled = false;
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private static PrintWriter redirectorWriter = null;
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private static BufferedReader redirectorReader = null;
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private static Transformer transformer = null;
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//private Properties connectionProperties = null;
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// creating a logger
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private static final ConcurrentLog log = new ConcurrentLog("PROXY");
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/**
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* Do logging configuration for special proxy access log file
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*/
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static {
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// get a switchboard
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sb = Switchboard.getSwitchboard();
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if (sb != null) {
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// set timeout
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timeout = sb.getConfigInt("proxy.clientTimeout", 60000);
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// do logger initialization
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try {
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log.info("Configuring proxy access logging ...");
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// getting the logging manager
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final LogManager manager = LogManager.getLogManager();
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final String className = HTTPDProxyHandler.class.getName();
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// determining if proxy access logging is enabled
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final String enabled = manager.getProperty(className + ".logging.enabled");
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if ("true".equalsIgnoreCase(enabled)) {
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// reading out some needed configuration properties
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int limit = 1024*1024, count = 20;
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String pattern = manager.getProperty(className + ".logging.FileHandler.pattern");
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if (pattern == null) pattern = "DATA/LOG/proxyAccess%u%g.log";
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// make pattern absolute
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if (!new File(pattern).isAbsolute()) pattern = new File(sb.getDataPath(), pattern).getAbsolutePath();
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final String limitStr = manager.getProperty(className + ".logging.FileHandler.limit");
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if (limitStr != null) try { limit = Integer.parseInt(limitStr); } catch (final NumberFormatException e) {}
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final String countStr = manager.getProperty(className + ".logging.FileHandler.count");
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if (countStr != null) try { count = Integer.parseInt(countStr); } catch (final NumberFormatException e) {}
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// creating the proxy access logger
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final Logger proxyLogger = Logger.getLogger("PROXY.access");
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proxyLogger.setUseParentHandlers(false);
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proxyLogger.setLevel(Level.FINEST);
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final FileHandler txtLog = new FileHandler(pattern, limit, count, true);
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txtLog.setFormatter(new ProxyLogFormatter());
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txtLog.setLevel(Level.FINEST);
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proxyLogger.addHandler(txtLog);
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log.info("Proxy access logging configuration done." +
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"\n\tFilename: " + pattern +
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"\n\tLimit: " + limitStr +
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"\n\tCount: " + countStr);
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} else {
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log.info("Proxy access logging is deactivated.");
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}
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} catch (final Exception e) {
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log.severe("Unable to configure proxy access logging.",e);
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}
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// load a transformer
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transformer = new ContentTransformer();
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transformer.init(new File(sb.getAppPath(), sb.getConfig(SwitchboardConstants.LIST_BLUE, "")).toString());
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// load the yellow-list
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final String f = sb.getConfig("proxyYellowList", null);
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if (f != null) {
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yellowList = FileUtils.loadList(new File(f));
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log.config("loaded yellow-list from file " + f + ", " + yellowList.size() + " entries");
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} else {
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yellowList = new HashSet<String>();
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}
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final String redirectorPath = sb.getConfig("externalRedirector", "");
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if (redirectorPath.length() > 0 && !redirectorEnabled) {
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try {
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redirectorProcess=Runtime.getRuntime().exec(redirectorPath);
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redirectorWriter = new PrintWriter(redirectorProcess.getOutputStream());
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redirectorReader = new BufferedReader(new InputStreamReader(redirectorProcess.getInputStream()));
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redirectorEnabled=true;
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} catch (final IOException e) {
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System.out.println("redirector not Found");
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}
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}
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} else {
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yellowList = null;
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}
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}
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/**
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* Special logger instance for proxy access logging much similar
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* to the squid access.log file
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*/
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public static final ConcurrentLog proxyLog = new ConcurrentLog("PROXY.access");
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/**
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* Reusable {@link StringBuilder} for logging
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*/
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private static final StringBuilder logMessage = new StringBuilder();
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/**
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* Reusable {@link StringBuilder} to generate the useragent string
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*/
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private static final StringBuilder userAgentStr = new StringBuilder();
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private static void handleOutgoingCookies(final RequestHeader requestHeader, final String targethost, final String clienthost) {
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/*
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The syntax for the header is:
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cookie = "Cookie:" cookie-version
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1*((";" | ",") cookie-value)
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cookie-value = NAME "=" VALUE [";" path] [";" domain]
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cookie-version = "$Version" "=" value
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NAME = attr
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VALUE = value
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path = "$Path" "=" value
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domain = "$Domain" "=" value
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*/
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if (sb.getConfigBool("proxy.monitorCookies", false)) {
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if (requestHeader.containsKey(RequestHeader.COOKIE)) {
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final Object[] entry = new Object[]{new Date(), clienthost, requestHeader.getMultiple(RequestHeader.COOKIE)};
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synchronized(sb.outgoingCookies) {
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sb.outgoingCookies.put(targethost, entry);
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}
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}
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}
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}
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private static void handleIncomingCookies(final ResponseHeader respondHeader, final String serverhost, final String targetclient) {
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/*
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The syntax for the Set-Cookie response header is
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set-cookie = "Set-Cookie:" cookies
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cookies = 1#cookie
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cookie = NAME "=" VALUE *(";" cookie-av)
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NAME = attr
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VALUE = value
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cookie-av = "Comment" "=" value
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| "Domain" "=" value
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| "Max-Age" "=" value
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| "Path" "=" value
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| "Secure"
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| "Version" "=" 1*DIGIT
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*/
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if (sb.getConfigBool("proxy.monitorCookies", false)) {
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if (respondHeader.containsKey(HeaderFramework.SET_COOKIE)) {
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final Object[] entry = new Object[]{new Date(), targetclient, respondHeader.getMultiple(HeaderFramework.SET_COOKIE)};
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synchronized(sb.incomingCookies) {
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sb.incomingCookies.put(serverhost, entry);
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}
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}
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}
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}
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/**
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* @param conProp a collection of properties about the connection, like URL
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* @param requestHeader The header lines of the connection from the request
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* @param respond the OutputStream to the client
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* @see de.anomic.http.httpdHandler#doGet(java.util.Properties, net.yacy.cora.protocol.HeaderFramework, java.io.OutputStream)
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*/
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public static void doGet(final HashMap<String, Object> conProp, final RequestHeader requestHeader, final OutputStream respond, final ClientIdentification.Agent agent) {
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ByteCountOutputStream countedRespond = null;
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try {
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final int reqID = requestHeader.hashCode();
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// remembering the starting time of the request
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final Date requestDate = new Date(); // remember the time...
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conProp.put(HeaderFramework.CONNECTION_PROP_REQUEST_START, Long.valueOf(requestDate.getTime()));
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sb.proxyLastAccess = System.currentTimeMillis();
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// using an ByteCount OutputStream to count the send bytes (needed for the logfile)
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countedRespond = new ByteCountOutputStream(respond, "PROXY");
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final String ip = (String) conProp.get(HeaderFramework.CONNECTION_PROP_CLIENTIP); // the ip from the connecting peer
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DigestURL url = null;
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try {
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url = HeaderFramework.getRequestURL(conProp);
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if (log.isFine()) log.fine(reqID +" GET "+ url);
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if (log.isFinest()) log.finest(reqID +" header: "+ requestHeader);
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//redirector
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if (redirectorEnabled){
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synchronized(redirectorProcess){
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redirectorWriter.println(url.toNormalform(true));
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redirectorWriter.flush();
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}
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final String newUrl = redirectorReader.readLine();
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if (!newUrl.equals("")) {
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try {
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url = new DigestURL(newUrl);
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} catch(final MalformedURLException e){}//just keep the old one
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}
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if (log.isFinest()) log.finest(reqID +" using redirector to "+ url);
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conProp.put(HeaderFramework.CONNECTION_PROP_HOST, url.getHost()+":"+url.getPort());
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conProp.put(HeaderFramework.CONNECTION_PROP_PATH, url.getPath());
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requestHeader.put(HeaderFramework.HOST, url.getHost()+":"+url.getPort());
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requestHeader.put(HeaderFramework.CONNECTION_PROP_PATH, url.getPath());
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}
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} catch (final MalformedURLException e) {
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// get header info for error logging
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final String host = (String) conProp.get(HeaderFramework.CONNECTION_PROP_HOST);
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final String path = (String) conProp.get(HeaderFramework.CONNECTION_PROP_PATH); // always starts with leading '/'
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final String args = (String) conProp.get(HeaderFramework.CONNECTION_PROP_ARGS); // may be null if no args were given
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final String errorMsg = "ERROR: internal error with url generation: host=" +
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host + ", path=" + path + ", args=" + args;
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log.severe(errorMsg);
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HTTPDemon.sendRespondError(conProp,countedRespond,4,501,null,errorMsg,e);
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return;
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}
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// check the blacklist
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// blacklist idea inspired by [AS]:
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// respond a 404 for all AGIS ("all you get is shit") servers
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if (Switchboard.urlBlacklist.isListed(BlacklistType.PROXY, url)) {
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log.info("AGIS blocking of host '" + url.getHost() + "'");
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HTTPDemon.sendRespondError(conProp,countedRespond,4,403,null,
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"URL '" + url.getHost() + "' blocked by yacy proxy (blacklisted)",null);
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return;
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}
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// handle outgoing cookies
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handleOutgoingCookies(requestHeader, url.getHost(), ip);
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prepareRequestHeader(conProp, requestHeader, url.getHost().toLowerCase());
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final ResponseHeader cachedResponseHeader = Cache.getResponseHeader(url.hash());
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// why are files unzipped upon arrival? why not zip all files in cache?
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// This follows from the following premises
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// (a) no file shall be unzip-ed more than once to prevent unnecessary computing time
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// (b) old cache entries shall be comparable with refill-entries to detect/distinguish case 3+4
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// (c) the indexing mechanism needs files unzip-ed, a schedule could do that later
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// case b and c contradicts, if we use a scheduler, because files in a stale cache would be unzipped
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// and the newly arrival would be zipped and would have to be unzipped upon load. But then the
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// scheduler is superfluous. Therefore the only reminding case is
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// (d) cached files shall be either all zipped or unzipped
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// case d contradicts with a, because files need to be unzipped for indexing. Therefore
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// the only remaining case is to unzip files right upon load. Thats what we do here.
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// finally use existing cache if appropriate
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// here we must decide weather or not to save the data
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// to a cache
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// we distinguish four CACHE STATE cases:
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// 1. cache fill
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// 2. cache fresh - no refill
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// 3. cache stale - refill - necessary
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// 4. cache stale - refill - superfluous
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// in two of these cases we trigger a scheduler to handle newly arrived files:
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// case 1 and case 3
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if (cachedResponseHeader == null) {
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if (log.isFinest()) log.finest(reqID + " page not in cache: fulfill request from web");
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fulfillRequestFromWeb(conProp, url, requestHeader, cachedResponseHeader, countedRespond, agent);
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} else {
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final Request request = new Request(
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null,
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url,
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requestHeader.referer() == null ? null : requestHeader.referer().hash(),
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"",
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cachedResponseHeader.lastModified(),
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sb.crawler.defaultProxyProfile.handle(),
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0,
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0,
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0);
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final Response response = new Response(
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request,
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requestHeader,
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cachedResponseHeader,
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sb.crawler.defaultProxyProfile,
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true,
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null
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);
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final byte[] cacheContent = Cache.getContent(url.hash());
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if (cacheContent != null && response.isFreshForProxy()) {
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if (log.isFinest()) log.finest(reqID + " fulfill request from cache");
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fulfillRequestFromCache(conProp, url, requestHeader, cachedResponseHeader, cacheContent, countedRespond);
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} else {
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if (log.isFinest()) log.finest(reqID + " fulfill request from web");
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fulfillRequestFromWeb(conProp, url, requestHeader, cachedResponseHeader, countedRespond, agent);
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}
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}
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|
|
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} catch (final Exception e) {
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try {
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final String exTxt = e.getMessage();
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if ((exTxt!=null)&&(exTxt.startsWith("Socket closed"))) {
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forceConnectionClose(conProp);
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} else if (!conProp.containsKey(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
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final String errorMsg = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
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HTTPDemon.sendRespondError(conProp,countedRespond,4,501,null,errorMsg,e);
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log.severe(errorMsg);
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} else {
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forceConnectionClose(conProp);
|
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}
|
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} catch (final Exception ee) {
|
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forceConnectionClose(conProp);
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}
|
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} finally {
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try { if(countedRespond != null) countedRespond.flush(); else if(respond != null) respond.flush(); } catch (final Exception e) {}
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if (countedRespond != null) countedRespond.finish();
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conProp.put(HeaderFramework.CONNECTION_PROP_REQUEST_END, Long.valueOf(System.currentTimeMillis()));
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conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_SIZE,(countedRespond != null) ? Long.toString(countedRespond.getCount()) : -1L);
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logProxyAccess(conProp);
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}
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}
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|
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private static void fulfillRequestFromWeb(final HashMap<String, Object> conProp, final DigestURL url, final RequestHeader requestHeader, final ResponseHeader cachedResponseHeader, final OutputStream respond, final ClientIdentification.Agent agent) {
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try {
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final int reqID = requestHeader.hashCode();
|
|
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String host = (String) conProp.get(HeaderFramework.CONNECTION_PROP_HOST);
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String path = (String) conProp.get(HeaderFramework.CONNECTION_PROP_PATH); // always starts with leading '/'
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final String args = (String) conProp.get(HeaderFramework.CONNECTION_PROP_ARGS); // may be null if no args were given
|
|
final String ip = (String) conProp.get(HeaderFramework.CONNECTION_PROP_CLIENTIP); // the ip from the connecting peer
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final String httpVer = (String) conProp.get(HeaderFramework.CONNECTION_PROP_HTTP_VER); // the ip from the connecting peer
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int port, pos;
|
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if ((pos = host.indexOf(':')) < 0) {
|
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port = 80;
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} else {
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port = Integer.parseInt(host.substring(pos + 1));
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host = host.substring(0, pos);
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}
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|
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// resolve yacy and yacyh domains
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|
String yAddress = resolveYacyDomains(host);
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|
|
// re-calc the url path
|
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final String remotePath = (args == null) ? path : (path + "?" + args); // with leading '/'
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|
|
// remove yacy-subdomain-path, when accessing /env
|
|
if ( (yAddress != null)
|
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&& (remotePath.startsWith("/env"))
|
|
&& ((pos = yAddress.indexOf('/')) != -1)
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) yAddress = yAddress.substring(0, yAddress.indexOf('/'));
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|
|
modifyProxyHeaders(requestHeader, httpVer);
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final String connectHost = hostPart(host, port, yAddress);
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final String getUrl = "http://"+ connectHost + remotePath;
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|
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requestHeader.remove(HeaderFramework.HOST);
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|
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final HTTPClient client = setupHttpClient(requestHeader, agent, connectHost);
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|
|
// send request
|
|
try {
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client.GET(getUrl, false);
|
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if (log.isFinest()) log.finest(reqID +" response status: "+ client.getHttpResponse().getStatusLine());
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_CLIENT_REQUEST_HEADER, requestHeader);
|
|
|
|
int statusCode = client.getHttpResponse().getStatusLine().getStatusCode();
|
|
final ResponseHeader responseHeader = new ResponseHeader(statusCode, client.getHttpResponse().getAllHeaders());
|
|
// determine if it's an internal error of the httpc
|
|
if (responseHeader.isEmpty()) {
|
|
throw new Exception(client.getHttpResponse().getStatusLine().toString());
|
|
}
|
|
|
|
ChunkedOutputStream chunkedOut = setTransferEncoding(conProp, responseHeader, statusCode, respond);
|
|
|
|
// the cache does either not exist or is (supposed to be) stale
|
|
long sizeBeforeDelete = -1;
|
|
if (cachedResponseHeader != null) {
|
|
// delete the cache
|
|
final ResponseHeader rh = Cache.getResponseHeader(url.hash());
|
|
if (rh != null && (sizeBeforeDelete = rh.getContentLength()) == 0) {
|
|
final byte[] b = Cache.getContent(url.hash());
|
|
if (b != null) sizeBeforeDelete = b.length;
|
|
}
|
|
Cache.delete(url.hash());
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE, "TCP_REFRESH_MISS");
|
|
}
|
|
|
|
// reserver cache entry
|
|
final Request request = new Request(
|
|
null,
|
|
url,
|
|
requestHeader.referer() == null ? null : requestHeader.referer().hash(),
|
|
"",
|
|
responseHeader.lastModified(),
|
|
sb.crawler.defaultProxyProfile.handle(),
|
|
0,
|
|
0,
|
|
0);
|
|
|
|
|
|
// handle incoming cookies
|
|
handleIncomingCookies(responseHeader, host, ip);
|
|
|
|
// prepareResponseHeader(responseHeader, res.getHttpVer());
|
|
prepareResponseHeader(responseHeader, client.getHttpResponse().getProtocolVersion().toString());
|
|
|
|
// sending the respond header back to the client
|
|
if (chunkedOut != null) {
|
|
responseHeader.put(HeaderFramework.TRANSFER_ENCODING, "chunked");
|
|
}
|
|
|
|
if (log.isFinest()) log.finest(reqID +" sending response header: "+ responseHeader);
|
|
HTTPDemon.sendRespondHeader(
|
|
conProp,
|
|
respond,
|
|
httpVer,
|
|
statusCode,
|
|
client.getHttpResponse().getStatusLine().toString(), // status text
|
|
responseHeader);
|
|
|
|
if (hasBody(client.getHttpResponse().getStatusLine().getStatusCode())) {
|
|
|
|
OutputStream outStream = chunkedOut != null ? chunkedOut : respond;
|
|
final Response response = new Response(
|
|
request,
|
|
requestHeader,
|
|
responseHeader,
|
|
sb.crawler.defaultProxyProfile,
|
|
true,
|
|
null
|
|
);
|
|
final String storeError = response.shallStoreCacheForProxy();
|
|
final boolean storeHTCache = response.profile().storeHTCache();
|
|
final String supportError = TextParser.supports(response.url(), response.getMimeType());
|
|
|
|
if (
|
|
/*
|
|
* Now we store the response into the htcache directory if
|
|
* a) the response is cacheable AND
|
|
*/
|
|
(storeError == null) &&
|
|
/*
|
|
* b) the user has configured to use the htcache OR
|
|
* c) the content should be indexed
|
|
*/
|
|
((storeHTCache) || (supportError != null))
|
|
) {
|
|
// we don't write actually into a file, only to RAM, and schedule writing the file.
|
|
// int l = res.getResponseHeader().size();
|
|
final int l = responseHeader.size();
|
|
final ByteArrayOutputStream byteStream = new ByteArrayOutputStream((l < 32) ? 32 : l);
|
|
|
|
final OutputStream toClientAndMemory = new MultiOutputStream(new OutputStream[] {outStream, byteStream});
|
|
// FileUtils.copy(res.getDataAsStream(), toClientAndMemory);
|
|
client.writeTo(toClientAndMemory);
|
|
// cached bytes
|
|
byte[] cacheArray;
|
|
if (byteStream.size() > 0) {
|
|
cacheArray = byteStream.toByteArray();
|
|
} else {
|
|
cacheArray = null;
|
|
}
|
|
if (log.isFine()) log.fine(reqID +" writeContent of " + url + " produced cacheArray = " + ((cacheArray == null) ? "null" : ("size=" + cacheArray.length)));
|
|
|
|
if (sizeBeforeDelete == -1) {
|
|
// totally fresh file
|
|
response.setContent(cacheArray);
|
|
try {
|
|
Cache.store(response.url(), response.getResponseHeader(), cacheArray);
|
|
sb.toIndexer(response);
|
|
} catch (final IOException e) {
|
|
log.warn("cannot write " + response.url() + " to Cache (1): " + e.getMessage(), e);
|
|
}
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE, "TCP_MISS");
|
|
} else if (cacheArray != null && sizeBeforeDelete == cacheArray.length) {
|
|
// before we came here we deleted a cache entry
|
|
cacheArray = null;
|
|
//cacheManager.push(cacheEntry); // unnecessary update
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE, "TCP_REF_FAIL_HIT");
|
|
} else {
|
|
// before we came here we deleted a cache entry
|
|
response.setContent(cacheArray);
|
|
try {
|
|
Cache.store(response.url(), response.getResponseHeader(), cacheArray);
|
|
sb.toIndexer(response);
|
|
} catch (final IOException e) {
|
|
log.warn("cannot write " + response.url() + " to Cache (2): " + e.getMessage(), e);
|
|
}
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE, "TCP_REFRESH_MISS");
|
|
}
|
|
} else {
|
|
// no caching
|
|
if (log.isFine()) log.fine(reqID +" "+ url.toNormalform(false) + " not cached." +
|
|
" StoreError=" + ((storeError==null)?"None":storeError) +
|
|
" StoreHTCache=" + storeHTCache +
|
|
" SupportError=" + supportError);
|
|
|
|
// FileUtils.copy(res.getDataAsStream(), outStream);
|
|
client.writeTo(outStream);
|
|
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_MISS");
|
|
}
|
|
|
|
outStream.close();
|
|
|
|
if (chunkedOut != null) {
|
|
chunkedOut.finish();
|
|
chunkedOut.flush();
|
|
}
|
|
} // end hasBody
|
|
} catch(final SocketException se) {
|
|
// if opened ...
|
|
// if(res != null) {
|
|
// // client cut proxy connection, abort download
|
|
// res.abort();
|
|
// }
|
|
client.finish();
|
|
handleProxyException(se,conProp,respond,url);
|
|
} finally {
|
|
// if opened ...
|
|
// if(res != null) {
|
|
// // ... close connection
|
|
// res.closeStream();
|
|
// }
|
|
client.finish();
|
|
}
|
|
} catch (final Exception e) {
|
|
handleProxyException(e,conProp,respond,url);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* determines if the response should have a body
|
|
*
|
|
* @param statusCode
|
|
* @param responseHeader
|
|
* @return
|
|
*/
|
|
private static boolean hasBody(final int statusCode) {
|
|
// "All 1xx (informational), 204 (no content), and 304 (not modified) responses MUST NOT
|
|
// include a message-body."
|
|
// [RFC 2616 HTTP/1.1, Sect. 4.3] and like [RFC 1945 HTTP/1.0, Sect. 7.2]
|
|
if((statusCode >= 100 && statusCode < 200) || statusCode == 204 || statusCode == 304) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
private static void fulfillRequestFromCache(
|
|
final HashMap<String, Object> conProp,
|
|
final DigestURL url,
|
|
final RequestHeader requestHeader,
|
|
final ResponseHeader cachedResponseHeader,
|
|
final byte[] cacheEntry,
|
|
OutputStream respond
|
|
) throws IOException {
|
|
|
|
final String httpVer = (String) conProp.get(HeaderFramework.CONNECTION_PROP_HTTP_VER);
|
|
|
|
// we respond on the request by using the cache, the cache is fresh
|
|
try {
|
|
prepareResponseHeader(cachedResponseHeader, httpVer);
|
|
|
|
// replace date field in old header by actual date, this is according to RFC
|
|
cachedResponseHeader.put(HeaderFramework.DATE, HeaderFramework.formatRFC1123(new Date()));
|
|
|
|
// check if we can send a 304 instead the complete content
|
|
if (requestHeader.containsKey(RequestHeader.IF_MODIFIED_SINCE)) {
|
|
// conditional request: freshness of cache for that condition was already
|
|
// checked within shallUseCache(). Now send only a 304 response
|
|
log.info("CACHE HIT/304 " + url.toNormalform(false));
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_REFRESH_HIT");
|
|
|
|
// setting the content length header to 0
|
|
cachedResponseHeader.put(HeaderFramework.CONTENT_LENGTH, Integer.toString(0));
|
|
|
|
// send cached header with replaced date and added length
|
|
HTTPDemon.sendRespondHeader(conProp,respond,httpVer,304,cachedResponseHeader);
|
|
//respondHeader(respond, "304 OK", cachedResponseHeader); // respond with 'not modified'
|
|
} else {
|
|
// unconditional request: send content of cache
|
|
log.info("CACHE HIT/203 " + url.toNormalform(false));
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE,"TCP_HIT");
|
|
|
|
// setting the content header to the proper length
|
|
cachedResponseHeader.put(HeaderFramework.CONTENT_LENGTH, Long.toString(cacheEntry.length));
|
|
|
|
// send cached header with replaced date and added length
|
|
HTTPDemon.sendRespondHeader(conProp,respond,httpVer,203,cachedResponseHeader);
|
|
//respondHeader(respond, "203 OK", cachedResponseHeader); // respond with 'non-authoritative'
|
|
|
|
// send also the complete body now from the cache
|
|
// simply read the file and transfer to out socket
|
|
FileUtils.copy(cacheEntry, respond);
|
|
}
|
|
// that's it!
|
|
} catch (final Exception e) {
|
|
// this happens if the client stops loading the file
|
|
// we do nothing here
|
|
if (conProp.containsKey(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
log.warn("Error while trying to send cached message body.");
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PERSISTENT,"close");
|
|
} else {
|
|
HTTPDemon.sendRespondError(conProp,respond,4,503,"socket error: " + e.getMessage(),"socket error: " + e.getMessage(), e);
|
|
}
|
|
} finally {
|
|
try { respond.flush(); respond.close(); } catch (final Exception e) {}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* resolve yacy and yacyh domains
|
|
*
|
|
* @param host
|
|
* @return
|
|
*/
|
|
private static String resolveYacyDomains(final String host) {
|
|
return (sb.peers == null) ? null : sb.peers.resolve(host);
|
|
}
|
|
|
|
/**
|
|
* @param host
|
|
* @param port
|
|
* @param yAddress
|
|
* @return
|
|
*/
|
|
private static String hostPart(final String host, final int port, final String yAddress) {
|
|
final String connectHost = (yAddress == null) ? host +":"+ port : yAddress;
|
|
return connectHost;
|
|
}
|
|
|
|
/**
|
|
* @param conProp
|
|
* @param requestHeader
|
|
* @param hostlow
|
|
*/
|
|
private static void prepareRequestHeader(final HashMap<String, Object> conProp, final RequestHeader requestHeader, final String hostlow) {
|
|
// set another userAgent, if not yellow-listed
|
|
if ((yellowList != null) && (!(yellowList.contains(domain(hostlow))))) {
|
|
// change the User-Agent
|
|
requestHeader.put(HeaderFramework.USER_AGENT, generateUserAgent(requestHeader));
|
|
}
|
|
|
|
// only gzip-encoding is supported, remove other encodings (e. g. deflate)
|
|
if ((requestHeader.get(HeaderFramework.ACCEPT_ENCODING,"")).indexOf("gzip",0) != -1) {
|
|
requestHeader.put(HeaderFramework.ACCEPT_ENCODING, "gzip");
|
|
} else {
|
|
requestHeader.put(HeaderFramework.ACCEPT_ENCODING, "");
|
|
}
|
|
|
|
addXForwardedForHeader(conProp, requestHeader);
|
|
}
|
|
|
|
private static String domain(final String host) {
|
|
String domain = host;
|
|
int pos = domain.lastIndexOf('.');
|
|
if (pos >= 0) {
|
|
// truncate from last part
|
|
domain = domain.substring(0, pos);
|
|
pos = domain.lastIndexOf('.');
|
|
if (pos >= 0) {
|
|
// truncate from first part
|
|
domain = domain.substring(pos + 1);
|
|
}
|
|
}
|
|
return domain;
|
|
}
|
|
|
|
/**
|
|
* creates a new HttpClient and sets parameters according to proxy needs
|
|
*
|
|
* @param requestHeader
|
|
* @param connectHost may be 'host:port' or 'host:port/path'
|
|
* @return
|
|
*/
|
|
private static HTTPClient setupHttpClient(final RequestHeader requestHeader, final ClientIdentification.Agent agent, final String connectHost) {
|
|
// setup HTTP-client
|
|
final HTTPClient client = new HTTPClient(agent, timeout);
|
|
client.setHeader(requestHeader.entrySet());
|
|
client.setRedirecting(false);
|
|
return client;
|
|
}
|
|
|
|
/**
|
|
* determines in which form the response should be send and sets header accordingly
|
|
* if the content length is not set we need to use chunked content encoding
|
|
* Implemented:
|
|
* if !content-length
|
|
* switch httpVer
|
|
* case 0.9:
|
|
* case 1.0:
|
|
* close connection after transfer
|
|
* break;
|
|
* default:
|
|
* new ChunkedStream around respond
|
|
* end if
|
|
*
|
|
* @param conProp
|
|
* @param responseHeader
|
|
* @param statusCode
|
|
* @param respond
|
|
* @return
|
|
*/
|
|
private static ChunkedOutputStream setTransferEncoding(
|
|
final HashMap<String, Object> conProp, final ResponseHeader responseHeader,
|
|
final int statusCode, final OutputStream respond) {
|
|
final String httpVer = (String) conProp.get(HeaderFramework.CONNECTION_PROP_HTTP_VER);
|
|
ChunkedOutputStream chunkedOut = null;
|
|
// gzipped response is ungzipped an therefor the length is unknown
|
|
if (responseHeader.gzip() || responseHeader.getContentLength() < 0) {
|
|
// according to http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
|
|
// a 204,304 message must not contain a message body.
|
|
// Therefore we need to set the content-length to 0.
|
|
if (statusCode == 204 || statusCode == 304) {
|
|
responseHeader.put(HeaderFramework.CONTENT_LENGTH, "0");
|
|
} else {
|
|
if (httpVer.equals(HeaderFramework.HTTP_VERSION_0_9) || httpVer.equals(HeaderFramework.HTTP_VERSION_1_0)) {
|
|
forceConnectionClose(conProp);
|
|
} else {
|
|
chunkedOut = new ChunkedOutputStream(respond);
|
|
}
|
|
responseHeader.remove(HeaderFramework.CONTENT_LENGTH);
|
|
}
|
|
}
|
|
return chunkedOut;
|
|
}
|
|
|
|
/**
|
|
* @param res
|
|
* @param responseHeader
|
|
*/
|
|
private static void prepareResponseHeader(final ResponseHeader responseHeader, final String httpVer) {
|
|
modifyProxyHeaders(responseHeader, httpVer);
|
|
correctContentEncoding(responseHeader);
|
|
}
|
|
|
|
/**
|
|
* @param responseHeader
|
|
*/
|
|
private static void correctContentEncoding(final ResponseHeader responseHeader) {
|
|
// TODO gzip again? set "correct" encoding?
|
|
if(responseHeader.gzip()) {
|
|
responseHeader.remove(HeaderFramework.CONTENT_ENCODING);
|
|
responseHeader.remove(HeaderFramework.CONTENT_LENGTH); // remove gziped length
|
|
}
|
|
}
|
|
|
|
/**
|
|
* adds the client-IP of conProp to the requestHeader
|
|
*
|
|
* @param conProp
|
|
* @param requestHeader
|
|
*/
|
|
private static void addXForwardedForHeader(final HashMap<String, Object> conProp, final RequestHeader requestHeader) {
|
|
// setting the X-Forwarded-For Header
|
|
if (sb.getConfigBool("proxy.sendXForwardedForHeader", true)) {
|
|
requestHeader.put(HeaderFramework.X_FORWARDED_FOR, (String) conProp.get(HeaderFramework.CONNECTION_PROP_CLIENTIP));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* removing hop by hop headers and adding additional headers
|
|
*
|
|
* @param requestHeader
|
|
* @param httpVer
|
|
*/
|
|
public static void modifyProxyHeaders(final HeaderFramework requestHeader, final String httpVer) {
|
|
removeHopByHopHeaders(requestHeader);
|
|
setViaHeader(requestHeader, httpVer);
|
|
}
|
|
|
|
private static void removeHopByHopHeaders(final HeaderFramework headers) {
|
|
/*
|
|
- Trailers
|
|
*/
|
|
|
|
headers.remove(RequestHeader.CONNECTION);
|
|
headers.remove(RequestHeader.KEEP_ALIVE);
|
|
headers.remove(RequestHeader.UPGRADE);
|
|
headers.remove(RequestHeader.TE);
|
|
headers.remove(RequestHeader.PROXY_CONNECTION);
|
|
headers.remove(RequestHeader.PROXY_AUTHENTICATE);
|
|
headers.remove(RequestHeader.PROXY_AUTHORIZATION);
|
|
|
|
// special headers inserted by squid
|
|
headers.remove(RequestHeader.X_CACHE);
|
|
headers.remove(RequestHeader.X_CACHE_LOOKUP);
|
|
|
|
// remove transfer encoding header
|
|
headers.remove(HeaderFramework.TRANSFER_ENCODING);
|
|
|
|
//removing yacy status headers
|
|
headers.remove(HeaderFramework.X_YACY_KEEP_ALIVE_REQUEST_COUNT);
|
|
headers.remove(HeaderFramework.X_YACY_ORIGINAL_REQUEST_LINE);
|
|
}
|
|
|
|
private static void setViaHeader(final HeaderFramework header, final String httpVer) {
|
|
if (!sb.getConfigBool("proxy.sendViaHeader", true)) return;
|
|
final String myAddress = (sb.peers == null) ? null : sb.peers.myAlternativeAddress();
|
|
if (myAddress != null) {
|
|
|
|
// getting header set by other proxies in the chain
|
|
final StringBuilder viaValue = new StringBuilder(80);
|
|
if (header.containsKey(HeaderFramework.VIA)) viaValue.append(header.get(HeaderFramework.VIA));
|
|
if (viaValue.length() > 0) viaValue.append(", ");
|
|
|
|
// appending info about this peer
|
|
viaValue
|
|
.append(httpVer).append(" ")
|
|
.append(myAddress).append(" ")
|
|
.append("(YaCy ").append(yacyBuildProperties.getVersion()).append(")");
|
|
|
|
// storing header back
|
|
header.put(HeaderFramework.VIA, viaValue.toString());
|
|
}
|
|
}
|
|
|
|
private static void handleProxyException(final Exception e, final HashMap<String, Object> conProp, final OutputStream respond, final DigestURL url) {
|
|
// this may happen if
|
|
// - the targeted host does not exist
|
|
// - anything with the remote server was wrong.
|
|
// - the client unexpectedly closed the connection ...
|
|
try {
|
|
|
|
|
|
// doing some errorhandling ...
|
|
int httpStatusCode = 404;
|
|
String httpStatusText = null;
|
|
String errorMessage = null;
|
|
Exception errorExc = null;
|
|
boolean unknownError = false;
|
|
|
|
// for customized error messages
|
|
boolean detailedErrorMsg = false;
|
|
String detailedErrorMsgFile = null;
|
|
serverObjects detailedErrorMsgMap = null;
|
|
|
|
if (e instanceof ConnectException) {
|
|
httpStatusCode = 403; httpStatusText = "Connection refused";
|
|
errorMessage = "Connection refused by destination host";
|
|
} else if (e instanceof BindException) {
|
|
errorMessage = "Unable to establish a connection to the destination host";
|
|
} else if (e instanceof NoRouteToHostException) {
|
|
errorMessage = "No route to destination host";
|
|
} else if (e instanceof UnknownHostException) {
|
|
//errorMessage = "IP address of the destination host could not be determined";
|
|
try {
|
|
detailedErrorMsgMap = unknownHostHandling(conProp);
|
|
httpStatusText = "Unknown Host";
|
|
detailedErrorMsg = true;
|
|
detailedErrorMsgFile = "proxymsg/unknownHost.inc";
|
|
} catch (final Exception e1) {
|
|
errorMessage = "IP address of the destination host could not be determined";
|
|
}
|
|
} else if (e instanceof SocketTimeoutException) {
|
|
errorMessage = "Unable to establish a connection to the destination host. Connect timed out.";
|
|
} else {
|
|
final String exceptionMsg = e.getMessage();
|
|
if ((exceptionMsg != null) && (exceptionMsg.indexOf("Corrupt GZIP trailer",0) >= 0)) {
|
|
// just do nothing, we leave it this way
|
|
if (log.isFine()) log.fine("ignoring bad gzip trail for URL " + url + " (" + e.getMessage() + ")");
|
|
forceConnectionClose(conProp);
|
|
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("Connection reset",0)>= 0)) {
|
|
errorMessage = "Connection reset";
|
|
} else if ((exceptionMsg != null) && (exceptionMsg.indexOf("unknown host",0)>=0)) {
|
|
try {
|
|
detailedErrorMsgMap = unknownHostHandling(conProp);
|
|
httpStatusText = "Unknown Host";
|
|
detailedErrorMsg = true;
|
|
detailedErrorMsgFile = "proxymsg/unknownHost.inc";
|
|
} catch (final Exception e1) {
|
|
errorMessage = "IP address of the destination host could not be determined";
|
|
}
|
|
} else if ((exceptionMsg != null) &&
|
|
(
|
|
(exceptionMsg.indexOf("socket write error",0)>=0) ||
|
|
(exceptionMsg.indexOf("Read timed out",0) >= 0) ||
|
|
(exceptionMsg.indexOf("Broken pipe",0) >= 0) ||
|
|
(exceptionMsg.indexOf("server has closed connection",0) >= 0)
|
|
)) {
|
|
errorMessage = exceptionMsg;
|
|
ConcurrentLog.logException(e);
|
|
} else {
|
|
errorMessage = "Unexpected Error. " + e.getClass().getName() + ": " + e.getMessage();
|
|
unknownError = true;
|
|
errorExc = e;
|
|
}
|
|
}
|
|
|
|
// sending back an error message to the client
|
|
if (!conProp.containsKey(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
if (detailedErrorMsg) {
|
|
HTTPDemon.sendRespondError(conProp,respond, httpStatusCode, httpStatusText, new File(detailedErrorMsgFile), detailedErrorMsgMap, errorExc);
|
|
} else {
|
|
HTTPDemon.sendRespondError(conProp,respond,4,httpStatusCode,httpStatusText,errorMessage,errorExc);
|
|
}
|
|
} else {
|
|
if (unknownError) {
|
|
log.severe("Unknown Error while processing request 'PROXY':" +
|
|
"\n" + Thread.currentThread().getName() +
|
|
"\n" + errorMessage,e);
|
|
} else {
|
|
log.warn("Error while processing request 'PROXY':" +
|
|
"\n" + Thread.currentThread().getName() +
|
|
"\n" + errorMessage);
|
|
}
|
|
forceConnectionClose(conProp);
|
|
}
|
|
} catch (final Exception ee) {
|
|
forceConnectionClose(conProp);
|
|
}
|
|
|
|
}
|
|
|
|
private static void forceConnectionClose(final HashMap<String, Object> conProp) {
|
|
if (conProp != null) {
|
|
conProp.put(HeaderFramework.CONNECTION_PROP_PERSISTENT,"close");
|
|
}
|
|
}
|
|
|
|
private static serverObjects unknownHostHandling(final HashMap<String, Object> conProp) throws Exception {
|
|
final serverObjects detailedErrorMsgMap = new serverObjects();
|
|
|
|
// generic toplevel domains
|
|
final HashSet<String> topLevelDomains = new HashSet<String>(Arrays.asList(new String[]{
|
|
"aero", // Fluggesellschaften/Luftfahrt
|
|
"arpa", // Einrichtung des ARPANet
|
|
"biz", // Business
|
|
"com", // Commercial
|
|
"coop", // genossenschaftliche Unternehmen
|
|
"edu", // Education
|
|
"gov", // Government
|
|
"info", // Informationsangebote
|
|
"int", // International
|
|
"jobs", // Jobangebote von Unternemen
|
|
"mil", // Military (US-Militaer)
|
|
// "museum", // Museen
|
|
"name", // Privatpersonen
|
|
"nato", // NATO (veraltet)
|
|
"net", // Net (Netzwerkbetreiber)
|
|
"org", // Organization (Nichtkommerzielle Organisation)
|
|
"pro", // Professionals
|
|
"travel", // Touristikindustrie
|
|
|
|
// some country tlds
|
|
"de",
|
|
"at",
|
|
"ch",
|
|
"it",
|
|
"uk"
|
|
}));
|
|
|
|
// getting some connection properties
|
|
String orgHostPort = "80";
|
|
String orgHostName = (String) conProp.get(HeaderFramework.CONNECTION_PROP_HOST);
|
|
if (orgHostName == null) orgHostName = "unknown";
|
|
orgHostName = orgHostName.toLowerCase();
|
|
int pos = orgHostName.indexOf(':');
|
|
if (pos != -1) {
|
|
orgHostPort = orgHostName.substring(pos+1);
|
|
orgHostName = orgHostName.substring(0,pos);
|
|
}
|
|
String orgHostPath = (String) conProp.get(HeaderFramework.CONNECTION_PROP_PATH); if (orgHostPath == null) orgHostPath = "";
|
|
String orgHostArgs = (String) conProp.get(HeaderFramework.CONNECTION_PROP_ARGS); if (orgHostArgs == null) orgHostArgs = "";
|
|
if (orgHostArgs.length() > 0) orgHostArgs = "?" + orgHostArgs;
|
|
detailedErrorMsgMap.put("hostName", orgHostName);
|
|
|
|
// guessing hostnames
|
|
final HashSet<String> testHostNames = new HashSet<String>();
|
|
String testHostName = null;
|
|
if (!orgHostName.startsWith("www.")) {
|
|
testHostName = "www." + orgHostName;
|
|
final InetAddress addr = Domains.dnsResolve(testHostName);
|
|
if (addr != null) testHostNames.add(testHostName);
|
|
} else if (orgHostName.startsWith("www.")) {
|
|
testHostName = orgHostName.substring(4);
|
|
final InetAddress addr = Domains.dnsResolve(testHostName);
|
|
if (addr != null) if (addr != null) testHostNames.add(testHostName);
|
|
}
|
|
if (orgHostName.length()>4 && orgHostName.startsWith("www") && (orgHostName.charAt(3) != '.')) {
|
|
testHostName = orgHostName.substring(0,3) + "." + orgHostName.substring(3);
|
|
final InetAddress addr = Domains.dnsResolve(testHostName);
|
|
if (addr != null) if (addr != null) testHostNames.add(testHostName);
|
|
}
|
|
|
|
pos = orgHostName.lastIndexOf('.');
|
|
if (pos != -1) {
|
|
final Iterator<String> iter = topLevelDomains.iterator();
|
|
while (iter.hasNext()) {
|
|
final String topLevelDomain = iter.next();
|
|
testHostName = orgHostName.substring(0,pos) + "." + topLevelDomain;
|
|
final InetAddress addr = Domains.dnsResolve(testHostName);
|
|
if (addr != null) if (addr != null) testHostNames.add(testHostName);
|
|
}
|
|
}
|
|
|
|
int hostNameCount = 0;
|
|
final Iterator<String> iter = testHostNames.iterator();
|
|
while (iter.hasNext()) {
|
|
testHostName = iter.next();
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostName",testHostName);
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostPort",orgHostPort);
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostPath",orgHostPath);
|
|
detailedErrorMsgMap.put("list_" + hostNameCount + "_hostArgs",orgHostArgs);
|
|
hostNameCount++;
|
|
}
|
|
|
|
detailedErrorMsgMap.put("list", hostNameCount);
|
|
|
|
if (hostNameCount != 0) {
|
|
detailedErrorMsgMap.put("showList", 1);
|
|
} else {
|
|
detailedErrorMsgMap.put("showList", 0);
|
|
}
|
|
|
|
return detailedErrorMsgMap;
|
|
}
|
|
|
|
private static synchronized String generateUserAgent(final HeaderFramework requestHeaders) {
|
|
userAgentStr.setLength(0);
|
|
|
|
final String browserUserAgent = requestHeaders.get(HeaderFramework.USER_AGENT, yacyProxyUserAgent);
|
|
final int pos = browserUserAgent.lastIndexOf(')');
|
|
if (pos >= 0) {
|
|
userAgentStr
|
|
.append(browserUserAgent.substring(0,pos))
|
|
.append("; YaCy ")
|
|
.append(yacyBuildProperties.getVersion())
|
|
.append("; yacy.net")
|
|
.append(browserUserAgent.substring(pos));
|
|
} else {
|
|
userAgentStr.append(browserUserAgent);
|
|
}
|
|
|
|
return userAgentStr.toString();
|
|
}
|
|
|
|
/**
|
|
* This function is used to generate a logging message according to the
|
|
* <a href="http://www.squid-cache.org/Doc/FAQ/FAQ-6.html">squid logging format</a>.<p>
|
|
* e.g.<br>
|
|
* <code>1117528623.857 178 192.168.1.201 TCP_MISS/200 1069 GET http://www.yacy.de/ - DIRECT/81.169.145.74 text/html</code>
|
|
*/
|
|
private final static synchronized void logProxyAccess(final HashMap<String, Object> conProp) {
|
|
|
|
logMessage.setLength(0);
|
|
|
|
// Timestamp
|
|
final String currentTimestamp = Long.toString(System.currentTimeMillis());
|
|
final int offset = currentTimestamp.length()-3;
|
|
|
|
logMessage.append(currentTimestamp.substring(0,offset));
|
|
logMessage.append('.');
|
|
logMessage.append(currentTimestamp.substring(offset));
|
|
logMessage.append(' ');
|
|
|
|
// Elapsed time
|
|
final Long requestStart = (Long) conProp.get(HeaderFramework.CONNECTION_PROP_REQUEST_START);
|
|
final Long requestEnd = (Long) conProp.get(HeaderFramework.CONNECTION_PROP_REQUEST_END);
|
|
final String elapsed = Long.toString(requestEnd.longValue()-requestStart.longValue());
|
|
|
|
for (int i=0; i<6-elapsed.length(); i++) logMessage.append(' ');
|
|
logMessage.append(elapsed);
|
|
logMessage.append(' ');
|
|
|
|
// Remote Host
|
|
final String clientIP = (String) conProp.get(HeaderFramework.CONNECTION_PROP_CLIENTIP);
|
|
logMessage.append(clientIP);
|
|
logMessage.append(' ');
|
|
|
|
// Code/Status
|
|
final String respondStatus = (String) conProp.get(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_STATUS);
|
|
String respondCode = (String) conProp.get(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_CODE);
|
|
if (respondCode == null) respondCode = "UNKNOWN";
|
|
logMessage.append(respondCode);
|
|
logMessage.append("/");
|
|
logMessage.append(respondStatus);
|
|
logMessage.append(' ');
|
|
|
|
// Bytes
|
|
final String bytes = (String) conProp.get(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_SIZE);
|
|
logMessage.append(bytes.toString());
|
|
logMessage.append(' ');
|
|
|
|
// Method
|
|
final String requestMethod = (String) conProp.get(HeaderFramework.CONNECTION_PROP_METHOD);
|
|
logMessage.append(requestMethod);
|
|
logMessage.append(' ');
|
|
|
|
// URL
|
|
final String requestURL = (String) conProp.get(HeaderFramework.CONNECTION_PROP_URL);
|
|
final String requestArgs = (String) conProp.get(HeaderFramework.CONNECTION_PROP_ARGS);
|
|
logMessage.append(requestURL);
|
|
if (requestArgs != null) {
|
|
logMessage.append("?")
|
|
.append(requestArgs);
|
|
}
|
|
logMessage.append(' ');
|
|
|
|
// Rfc931
|
|
logMessage.append("-");
|
|
logMessage.append(' ');
|
|
|
|
// Peerstatus/Peerhost
|
|
final String host = (String) conProp.get(HeaderFramework.CONNECTION_PROP_HOST);
|
|
logMessage.append("DIRECT/");
|
|
logMessage.append(host);
|
|
logMessage.append(' ');
|
|
|
|
// Type
|
|
String mime = "-";
|
|
if (conProp.containsKey(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_HEADER)) {
|
|
final HeaderFramework proxyRespondHeader = (HeaderFramework) conProp.get(HeaderFramework.CONNECTION_PROP_PROXY_RESPOND_HEADER);
|
|
mime = proxyRespondHeader.mime();
|
|
if (mime.indexOf(';') != -1) {
|
|
mime = mime.substring(0,mime.indexOf(';'));
|
|
}
|
|
}
|
|
logMessage.append(mime);
|
|
|
|
// sending the logging message to the logger
|
|
if (proxyLog.isFine()) proxyLog.fine(logMessage.toString());
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
proxy test:
|
|
|
|
http://www.chipchapin.com/WebTools/cookietest.php?
|
|
http://xlists.aza.org/moderator/cookietest/cookietest1.php
|
|
http://vancouver-webpages.com/proxy/cache-test.html
|
|
|
|
*/
|